Rock with marcasite

[th30utkast3d]

I found this rock and and I see a lot of marcasite on it. All the cracks are filled with marcasite. I do see what I think is calcite on it too. I was wondering If it was cut in half would i see more? I am wondering if it is worth cutting in half and dissolving the calcite. or would the insides be just the rock? This is a nice rock but i am super curious what it would look like cut in half and would cutting it cause alot of damage.

[lauriesrocks]

I can't be sure, but that looks kinda like biotite mica to me.

[th30utkast3d]

I thought so too but it seems to not be as thin and flakey under a magnifying glass. some areas. I know it is not hollow like a geode but was hoping if I cut it in half that It would look like goldish veins.

[Ryan]

Could be mica. Would need to see it in person. And depending on what angle you cut the rock, you may see different things. Kind of like wood, some rocks will appear different if cut "against the grain" or "parallel with the grain." Make sense?